Sekihara competed against Takumi Hamada in the second fight of the RIZIN.55 event, which was held at the LaLa arena TOKYO-BAY in Japan. The preliminary matchup had been unfolding as a competitive contest before reaching a dramatic and harrowing conclusion in the dying moments of the third and final round. Near the very end of the frame, Hamada executed a high-impact slam that forcefully projected Sekihara backward onto the canvas. The momentum and execution of the maneuver left little time for defensive posture, and the referee swiftly intervened to wave off the contest, resulting in a technical knockout victory for Hamada just seconds before the final bell.
Footage of the definitive sequence quickly circulated across social media platforms, capturing the intensity of the finish. Outlets such as Verdict MMA documented the moment online, noting the dramatic nature of what unfolded on canvas as a buzzer-beater slam knockout. However, the celebratory atmosphere typical of a definitive combat sports finish was rapidly overshadowed by immediate concern for Sekihara’s physical well-being as it became apparent that he was not recovering consciousness at the expected pace following the stoppage.
According to information detailed by RIZIN officials, Sekihara lost consciousness following the impact and the subsequent conclusion of the fight. Emergency medical personnel at the venue immediately stepped in to provide initial stabilization before arranging for his rapid transport to the Chiba Prefectural General Emergency Medical Center, a specialized medical facility located in proximity to the arena. Upon arrival, medical staff determined that the severity of his injuries necessitated immediate surgical intervention. Sekihara underwent a high-risk emergency neurosurgical procedure to address the acute subdural hematoma.
While the fighter managed to survive the initial surgery, which provided a brief window of cautious optimism for his family and the promotion, his medical status took a critical turn for the worse the following morning. Medical evaluations indicated that his condition had deteriorated, forcing the surgical team to perform a second operation in an effort to stabilize him and manage the escalating pressure within his skull. RIZIN officials noted that despite the best efforts of the medical staff at the Chiba Prefectural General Emergency Medical Center, Sekihara remains in severe and critical condition, with doctors unable to definitively predict the ultimate outcome of his ongoing treatment.
In the wake of the incident, communication regarding the fighter’s health has been tightly coordinated through the promotion to ensure accuracy and respect for the family’s privacy. A formal statement was issued through RIZIN on behalf of Sho Sekihara’s father, Masamichi Sekihara. In his message, the elder Sekihara expressed profound gratitude to the supporters, fans, and members of the combat sports community who have flooded various channels with messages of concern, sympathy, and well-wishes. Furthermore, he appealed to the public to continue keeping his son in their thoughts and to maintain hope for his recovery during this deeply challenging period.
Parallel to the family’s statement, RIZIN leadership issued a direct appeal to both fans and media representatives, urging them to exercise restraint and caution. The promotion strongly requested that individuals refrain from circulating unverified rumors, speculation, or unconfirmed medical details while the fighter’s situation remains delicate and uncertain. In combat sports reporting, high-profile medical emergencies frequently spark a flurry of unverified claims across digital platforms, prompting organizations to clamp down on speculation to protect both the privacy of the affected athlete and the peace of mind of their loved ones.
As of the latest updates provided by the organization, no further granular medical details, diagnostic breakdowns, or definitive prognoses have been made publicly available. Management at RIZIN has maintained a transparent yet protective stance, indicating that additional statements or press updates will only be issued should Sekihara’s medical condition exhibit signs of stabilization or if there is another substantive development in his hospital trajectory. For now, the combat sports world waits anxiously for positive news, keeping watch over a competitor whose dedication to the sport has now placed him in the most important fight of his life.
